To Set The Reference Level To The Peak Value; To Change The Default Amplitude Settings - HP 86140A Series User Manual

To set the reference level to the peak value

1 Press the front-panel Amplitude key.
2 Press the Peak to REF LEVEL softkey.
The system sets the value of the reference level equal to the value of the high-
est point on the active trace.

To change the default amplitude settings

1 Press the front-panel Amplitude key.
2 Press the Amplitude Setup.... softkey.
3 The Amplitude Setup panel opens. Refer to
page 3-65
The Amplitude Setup panel
Note
The settings for sensitivity, video bandwidth and sweep time interact. If the sensitivity is
set to manual, the video bandwidth and sweep time may be forced to Auto mode. If the
video bandwidth is set to manual, the sensitivity and sweep time may be forced to Auto.
If the sweep speed is set to manual and is set too fast, the
come on in the display area. Since these settings interact, it is recommended that only
one of the settings be changed, whichever setting is most important to the measurement
task being performed.
for information on changing and selecting items in the setup panel.
Using the Optical Spectrum Analyzer
The Amplitude Menus
indicator will
OVER SWEEP
"To Fill In a Setup Panel" on
3-11